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Anastrozole Arimidex (albert@kafenbio.com)

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Brand: kafen
型号: 120511-73-4
规格: 99.5%
Price: Negotiable
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Address: China
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Updated on: 2016-09-09 09:25
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Email:albert@kafenbio.com 
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1.Quick Details:
 
Product Name Arimidex
Chemical Name Anastrozole arimidex
CAS Number 120511-73-4
Molecular Formula C17H19N5
Molecular Weight 293.37
Melting Point 81.0~84.0ºC
Assay 99.5%
Appearance White powder
 
 2.Product Description:

An aromatase inhibitor. Used as an antineoplastic raw materials.Potent selective triazole aromatase inhibitors, can inhibit the cytochrome P-450 aromatase enzyme which depends blocking the biosynthesis of estrogen, and estrogen to stimulate breast cancer cell growth factors. Treatment of breast cancer, especially for those with hormone relapse after adjuvant therapy after menopause for women with advanced breast cancer.
 
Arimidex is the aromatase inhibitor of choice. Arimidex's mechanism of action - blocking conversion of aromatizable steroids to estrogen - is in contrast to the mechanism of action of anti-estrogens such as clomiphene (Clomid)  (Nolvadex), which block estrogen receptors in some tissues, and activate estrogen receptors in others.

The drug is appropriately used when using substantial amounts of aromatizing steroids, or when one is prone to gynecomastia and using moderate amounts of such steroids. Arimidex does not have the side effects of aminoglutethimide (Cytadren) and can achieve a high degree of estrogen blockade, much moreso than Cytadren. It is possible to reduce estrogen too much with Arimidex, and for this reason blood tests, or less preferably salivary tests, should be taken after the first week of use to determine if the dosing is correct.

3.Product Application:

The drug is appropriately used when using substantial amounts of aromatizing steroids, or when one is prone to gynecomastia and using moderate amounts of such steroids. Arimidex does not have the side effects of aminoglutethimide (Cytadren) and can achieve a high degree of estrogen blockade, much moreso than Cytadren. It is possible to reduce estrogen too much with Arimidex, and for this reason blood tests, or less preferably salivary tests, should be taken after the first week of use to determine if the dosing is correct.

Three azole aromatase inhibitors are potent selective, it can inhibit the cytochrome P-450 dependent aromatase thereby blocking the biosynthesis of estrogen, but estrogen is the main factor that stimulates the growth of breast cancer cells.

The treatment of breast cancer, especially for those with adjuvant hormone therapy after menopause after recurrence of women with advanced breast cancer.

4.COA:
 
Items Standard Results
Description White crystalline powder Complies
Identification IR
HPLC
Reactive
Conform with standard IR
Conform with standard HPLC
Conform
Solubility Freely soluble in methanol,acetone,ethanol and 
tetrahydrofuran.
And very soluble in acetonitrile
Complies
Total Impurity max.0.5% 0.18%
Total Unspecified Impurity max. 0.2% 0.08%
Individual unspecified
 impurlty
max. 0.1% 0.05%
Related compound B max. 0.2% 0.07%
Related compound C max. 0.2% 0.04%
Related compound D max. 0.1% 0.05%
Related compound E max. 0.1% 0.06%
Limit of cyclohexane max. 0.08% ND
Limit of ethylacetate max. 0.1% 0.07%
Melting point 81.0~84.0 82.5~83.2
Water max. 0.3% 0.21%
Residue on ignition max. 0.1% 0.07%
Heavy metals max.0.001% Complies
Assay(HPLC) 98.0%~102.0% 99.8%
 
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